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mnbjkl
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樓主  發(fā)表于: 2011-11-24 16:46
相同功率的電機,電機極數不同,在額定轉速下,誰(shuí)輸出轉矩大?例如都是11KW電機,一個(gè)4極,一個(gè)8極,在其額定轉速下,誰(shuí)的力矩大。有沒(méi)計算公式,好像是8極的力矩大,電流有什么不同?
niningtt
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1樓  發(fā)表于: 2011-11-24 17:58
轉速與極對數成反比,也就是說(shuō)極對數越大額定轉速越慢(轉差率及電源頻率電壓一致的情況下)。從理論公式 電機的轉矩=電機的功率X9550/電機的轉速,可以知道電機的轉矩與電機的轉速成反比,也就是與極對數成反比

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